ProgramGuruTo add an item to a Set in JavaScript, you can use the add method of the Set object.
In this example,
mySet.add method to add a new item to mySet.let mySet = new Set();
mySet.add("apple");
mySet.add("banana");
mySet.add("orange");
console.log("Set before adding item: ", mySet);
mySet.add("grape");
console.log("Set after adding item: ", mySet);Set before adding item: Set(3) { 'apple', 'banana', 'orange' }
Set after adding item: Set(4) { 'apple', 'banana', 'orange', 'grape' }In this example,
numberSet.add method to add a new number to numberSet.let numberSet = new Set();
numberSet.add(1);
numberSet.add(2);
numberSet.add(3);
numberSet.add(4);
numberSet.add(5);
console.log("Set before adding number: ", numberSet);
numberSet.add(6);
console.log("Set after adding number: ", numberSet);Set before adding number: Set(5) { 1, 2, 3, 4, 5 }
Set after adding number: Set(6) { 1, 2, 3, 4, 5, 6 }In this tutorial, we learned How to add an Item to a Set in JavaScript language with well detailed examples.